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PF-6
OVER-OPENING STAGE (OPTIONAL)
A supplementary stage can be calibrated in order to continue opening the
air inlet beyond the last temperature controller ventilation stage. This
supplementary stage is optional. It is used to direct the airflow more
efficiently during periods of warm weather. When all the reference
points of the temperature controller ventilation stages have been cali-
brated, the PF-6 allows you to specify a temperature bandwidth as well
as a percentage of air inlet opening for the supplementary stage.
Normal Mode:
To use normal mode, set internal switch #8 to OFF. The PF-6 gradually
opens or closes the panels in a linear fashion as the room temperature
rises above the last reference point temperature. The air inlet opening
reaches the percentage specified for the over-opening when the room
temperature is equal to "temperature of the last reference point +
over-opening bandwidth" . The percentage of air inlet opening is based on
the smallest and greatest air inlet openings calibrated for the controller
stages. The smallest value defines an air inlet opening of 0% and the
greatest value defines an air inlet opening of 100%.
Inlet
Opening
Over-Opening
Inlet Opening
Last Stage
Inlet Opening
Min.Opening
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PF-6.rev.14
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CONTROLLER STAGES
Temperature
Set Point
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OVER-OPENING
BANDWIDTH
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Temperature
Room
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